Reference no: EM131081849
You must show ALL calculations of answers attained to receive credit. Any form of cheating or copying will result in a zero grade on the assignment for all students involved. Please utilize periodic table located on BB for all problems where applicable. You must include the cover sheet located at the end of this assignment. You must box your final answers; work must be legible.
1. Complete the following table. (0.5 ea.)
Symbol
|
Protons
|
Neutrons
|
Electrons
|
Charge
|
|
4
|
6
|
|
0
|
2234????2+
|
|
|
|
|
1633??2-
|
|
|
|
|
1122????+
|
|
|
|
|
2. Determine whether the following elements are metals, nonmetals, or metalloids. Please circle the correct answer. (0.25 ea.)
a. Pd
|
Metal
|
Nonmetal
|
Metalloid
|
b. Si
|
Metal
|
Nonmetal
|
Metalloid
|
c. Te
|
Metal
|
Nonmetal
|
Metalloid
|
d. Kr
|
Metal
|
Nonmetal
|
Metalloid
|
3. The horizontal rows of the periodic table are called .
4. An element has two naturally occurring isotopes. One has an abundance of 37.40% and an isotopic mass of 184.953 amu, and the other has an abundance of 62.60% and a mass of 186.956 amu. What is the atomic weight of the element?
5. The element antimony has only two naturally-occurring isotopes. One isotope has an abundance of 57.30% and an isotopic mass of 120.904 amu. The other has an abundance of 42.70% and an isotopic mass of 122.853 amu. Based on this data, what is the atomic weight of antimony?
6. Label which group on the periodic table the following elements belong. [Families: alkali metals, alkaline earth metals, transition metals, halogens, or noble gases]. (0.25 ea.)
Family
a. I
b. Li
c. Co
d. Rn
7. Name the following ionic compounds that contain metals that can only form one charge:
a. NaF
b. MgCl2
c. Mg(OH)2
d. Ag2O
8. Write a formula for the ionic compound that forms between each pair of elements:
a. barium and oxygen
b. beryllium and chlorine
c. magnesium and sulfur
d. strontium and bromine
9. Name each ionic compound:
a. NH4I
b. NaClO2
c. Pb(C2H3O2)2
d. KClO3
10. Write a formula for the compound that forms between barium and each polyatomic ion:
a. hydroxide
b. chromate
c. phosphate
d. cyanide
11. Determine the name from the formula:
a. iridium(III) bromide
b. potassium carbonate
c. cobalt(II) phosphate
d. copper(I) chloride
12. Name the following molecular compounds:
a. NF
b. N3Cl2
c. XeO3
d. CCl4
13. Write a formula for each molecular compound:
a. phosphorus trichloride
b. chlorine monoxide
c. disulfur tetrafluoride
d. diphosphorus pentasulfide
14. Write the formula for each acid:
a. hydrofluoric acid
b. carbonic acid
c. sulfurous acid
d. hydrocyanic acid
15. What is the formula mass for diboron tetrachloride?
16. What is the formula mass of copper (II) fluoride?
How can you check client or customer requirements
: Answer each question in as much detail as possible, considering your organisational requirements for each one. Complete the work in How can you check client or customer requirements? Demonstrate how you can forecast the economic feasibility of a pro..
|
Relationship between price level and the real GDP supplied
: Aggregate Supply curve shows the relationship between the price level and the real GDP supplied in an economy. a. Under what circumstances the AS curve will have a flat segment? b. When an economy has a vertical AS curve? c. The AS curve is upward sl..
|
Using the midpoint rule-cross price elasticity of demand
: When the price of good A is $20, the quantity of good B purchased is 400. When the price of good A is $40, the quantity of good B purchased is 750. Using the midpoint rule, the cross price elasticity of demand between goods A and B is
|
The entire infrastructure will need replacing all the time
: One commentator suggested he knew the reason for China's success, writing: "On my visits to China I noticed the finished apartments were so poorly made that they will need to be replaced in less than 15-20 years. This is the secret to their economy. ..
|
What is the formula mass for diboron tetrachloride
: What is the formula mass for diboron tetrachloride? What is the formula mass of copper (II) fluoride? Write a formula for the compound that forms between barium and each polyatomic ion.
|
Find the pmf of y
: Find the PMF of Y, the number of points scored in a 1 and 1 given that any free throw goes in with probability p, independent of any other free throw.
|
How does harrah strategy differ from its competitors
: What are the basic elements of Harrah's closed-loop marketing system and how does it help to improve ROIs? What specific challenge did Expedia face related to customer data? Why was this important to its success?
|
Is the commentator right-comment from economic perspective
: Sammy Hagar is a popular recording artist and is perhaps most well known for being the former lead singer of the rock band Van Halen. In a recent interview Hagar was asked whether he planned on making new music. That doesn't even come close to equali..
|
Eliminate a specific frequency from band of desired
: What type of filter is used to eliminate a specific frequency from band of desired frequencies?
|